public function testPreviousSibling()
{
$parent = new Node();
$child = new Node();
$child2 = new Node();
$child->setParent($parent);
$child2->setParent($parent);
$this->assertEquals($child->id(), $child2->previousSibling()->id());
}
/**
* @expectedException PHPHtmlParser\Exceptions\ParentNotFoundException
*/
public function testPreviousSiblingNoParent()
{
$child = new Node();
$child->previousSibling();
}
